My son was a patient of Primary Pediatrics for the first 3.5 years of his life. I chose PP because my teenage sister was a patient there, the neighbors kids went there, everyone went there. That's where the problems started, since EVERYONE goes there, it's almost impossible to get in for an appointment, be seen without waiting for way too long, and then getting the quality you deserve (especially after waiting!)
While most of the doctor's in the practice can give an accurate diagnosis, sadly, due to HMO's you ae rushed through, sort of like cattle.
Maybe shop around for a less busy doctor for your kids?
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